Checking Engine Oil Pressure
- Remove the oil pressure switch. See REMOVAL .
- Install oil pressure test gauge assembly, Special Tools C-3292 with 8406 adaptor.
- Start engine and monitor gauge readings.CAUTION: If oil pressure is 0 at idle, Do Not Run engine at 3000 RPM.
- Oil Pressure (engine at operating temperature): Curb Idle 34.5 kPa (5 psi) minimum 3000 RPM 300-724 kPa (45-105 psi).
- If oil pressure is 0 at idle. Shut off engine, check for pressure relief valve stuck open or a clogged oil pickup screen.
- Install oil pressure switch after testing is completed. See INSTALLATION under OIL PRESSURE SWITCH.